Strange acpi thing with battery

Hi

I'm having a little problem with XFCE battery monitor and my acpi.
I've searched around on google and so but I couldn't find someone
experiencing the same problem of mine. When I select the battery monitor
for inclusion in the xfce bar in acpi_listen I get signals 80 and 81
caught at least every second, and in the meantime in acpid logfile 

-
[Tue Sep 20 21:45:01 2005] received event "processor CPU1 00000080
00000000"
[Tue Sep 20 21:45:01 2005] notifying client 8141[1000:100]
[Tue Sep 20 21:45:01 2005] executing action "/etc/acpi/default.sh
processor CPU1 00000080 000000
00"
[Tue Sep 20 21:45:01 2005] BEGIN HANDLER MESSAGES
[Tue Sep 20 21:45:02 2005] END HANDLER MESSAGES
[Tue Sep 20 21:45:02 2005] action exited with status 0
[Tue Sep 20 21:45:02 2005] completed event "processor CPU1 00000080
00000000"
[Tue Sep 20 21:45:02 2005] received event "processor CPU1 00000081
00000000"
[Tue Sep 20 21:45:02 2005] notifying client 8141[1000:100]
[Tue Sep 20 21:45:02 2005] executing action "/etc/acpi/default.sh
processor CPU1 00000081 000000
00"
[Tue Sep 20 21:45:02 2005] BEGIN HANDLER MESSAGES
[Tue Sep 20 21:45:02 2005] END HANDLER MESSAGES
[Tue Sep 20 21:45:02 2005] action exited with status 0
[Tue Sep 20 21:45:02 2005] completed event "processor CPU1 00000081
00000000"

-

I thought it was a X problem, or an acpi problem, but I noticed it only
happens when I have the battery monitor in the bar.
I didn't manage to understand the meaning of that two messages, so I'm
asking here if this behaviour is normal, and in case how can I avoid it
since it's flooding my logs.
My pc is an Asus a2k laptop, running 2.6.13.1 custom kernel (but it's
going this way since at least 2.6.10).

I hope someone can give me a hint.
Many thanks
Maxxer